R-Lipoic Acid is exceptionally suitable for supporting the retina of the eye because it can enter the mitochondria, recycle other antioxidants, and is regenerated by high blood sugar. R-Lipoic Acid can help protect the nervous system from the damaging effects of unhealthy blood sugar metabolism, it appears to support healthy glucose uptake and utilization directly.

After I waited over 4 weeks for the shipment to arrive, I wanted to give it some time before reviewing it.
I must say, it is a great product. First of all it gave me energy and it also took care of a hormonal head-egg in 15 minutes after taking it, which I did not expect!The only drawback is, that it can be giving you a bad burning sensation in your stomach after taking it and you have to drink several glasses of water to cease the burning effect. It does not do this all the time. Sometimes I feel nothing at all.
The therapeutic dosage is 600mg. I slowly worked myself up to 500mg and soon I will take 600mg in divided doses over the day.
I must say, I am very happy with this product!